114426-21, Boeing 747 Pilot Quick Don Emergency Oxygen Mask

Boeing 747 Pilot / Copilot / Aircrew Quick Don Emergency Oxygen Mask assembly as shown on photos. Manufactured by Puritan-Bennett Aero Systems Co. Assembly P/N 114426-21. Assembly was removed from salvaged aircraft and it checks out ok visually but will need to be inspected if it is to be installed on aircraft. It is also used on several other commercial as well as corporate aircraft types. High $$$ mask!! Sold for display only, as is, no returns.